Manchester City have shortened again to make history this season by becoming the first team to win the Quadruple.

Following City's 4-2 victory over Cardiff, talk has continued about what Manuel Pellegrini's side can achieve this season and Betfred's standout 100/1 about such a feat has duly turned into 80/1, a price also offered by Sky Bet. William Hill's price has been cut into just 33s.

City, who currently sit second in the Premier League a point behind leaders Arsenal, are also through to the last 16 of the Champions League where they will meet Barcelona, the fourth round of the FA Cup where they will host Watford and are almost certain to reach the Capital One Cup final where either Manchester United or Sunderland await. They are 6-0 up on West Ham heading into Tuesday's second leg.

To win the Quadruple, which Pellegrini was eyeing last week, City would need to play at least 30 more games this season.

Speaking about winning all four competitions prior to City's 5-0 win over Blackburn last Wednesday, Pellegrini said: "We know that during the season, with injuries and the amount of games you have to play, it is very difficult.

"That's why nobody has done it before. But I think we must have the mentality to try to do it."

Pellegrini's men were as big as 1000/1 for the Quadruple as recently as October but having sorted out their away form in recent times without giving up their goalscoring prowess, their odds have steadily shortened.

The 'traditional' Treble of Premier League, FA Cup and Champions League - a feat achieved by local rivals United back in 1998/99 season - can be backed at 66s with Sky Bet and Betfred, while the domestic Treble is into 9/1 (Ladbrokes, Coral) with all the 10/1 having been taken at the weekend.

City scored their 100th goal (in all competitions) of the season during that win over Cardiff and the bookies are already betting on whether they can score 100 in the league alone. They currently have 63 from 22 games so would need to add 37 in their remaining 16 games to reach three figures.

Sky Bet make it more likely than not to happen, offering 4/6. They will also give you 2/1 that City break the record for goals in a Premier League season. Chelsea's mark of 103, a tally they racked up in 2009/10, is the one they have to beat.

City have won all 11 of their home league games so far and BetVictor are now into just 5/2 (from 4/1 prior to the weekend) that they end the season with a perfect home record of 19 victories, something also never achieved before.

Title rivals Chelsea are next to visit the Etihad Stadium on February 3. After that City will have to host Sunderland, Stoke, Aston Villa, Fulham, Southampton, West Brom and West Ham.

Sky Bet take a different angle and offer 2/5, backed in from 4/6 earlier on Monday, that City go through the season unbeaten at home.